Quote Originally Posted by mainaman View Post
The description says it is a single bevel knife, so it should have the above posted grind geometry.
Those grinds are tricky to sharpen keep that in mind if you are new to single bevel Japanese knives.

"In the Tosa region it became common to give the knives a double bevel and use them as a gyuto would be used. As Kajiwara-san resides in Tosa, his rendition of the funayaki follows in the Tosa tradition"

That right there makes me think it is a double bevel.